The AlwaysOn Availability Groups feature is a high-availability and disaster-recovery solution that provides an enterprise-level alternative to database mirroring. An availability group supports a failover environment for a discrete set of user databases, known as availability databases that fail over together. For more information, please see AlwaysOn Availability Groups.

In SQL Server 2016, SQL Server Integration Services (SSIS) introduces new capabilities that allow you to easily deploy to a centralized SSIS Catalog (i.e. SSISDB user database). In order to provide the high-availability for the SSISDB database and its contents (projects, packages, execution logs, etc.), you can add the SSISDB database (just the same as any other user database) to an AlwaysOn Availability Group. When a failover occurs, one of the secondary nodes automatically becomes the new primary node.

The Incremental Package Deployment feature allows you to deploy one or more packages to an existing or new project without deploying the whole project. You can incrementally deploy packages using: Deployment Wizard, SQL Server Management Studio (uses Deployment Wizard), stored procedures, and Management Object Model (MOM) API at this time. See Deploy Packages to Integration Services Server for details.